Linux

By noobslabs.

https://www.noobslab.com/2015/11/stylishdark-theme-with-3-variants.html

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Install:

sudo add-apt-repository ppa:noobslab/themes

sudo apt-get update

sudo apt-get install stylishdark-theme

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Stylish-gtk-theme:

https://www.gnome-look.org/p/1013743/

https://github.com/vinceliuice/stylish-gtk-theme

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Arc theme:

• https://github.com/horst3180/Arc-theme

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May be useful (Or not :)

stylish gtk https://www.gnome-look.org/p/1013743/

Adapta theme.